Which of these setTimeout format is better?
Which of these constructs is better and why setTimeout(function() { $('#secret').hide(); }, 5000); setTimeout( "$('#secret').hide();", 5000); $('#secret').show(5000, function(){ this.hide(xxx)} ); ...
syntax
What's the history of the + in front of a hashref that disambiguates from a code block?
I would like to read a little more about the + that is usually put in front of a hashref that helps to disambiguate from a code block. When was it first introduced? Who first introduced it (recommended it)? How did people go around the issue before this was introduced? Any trivia or notes that comes to mind while using this syntax? ...
Choosing a syntax for list generating expressions
C# has generator functions which have syntax like: IEnumerable<int> GetNats(int max) { for (int i=0; i < max; ++i) yield return i; } A feature I am interested in for my programming language (a simple object-oriented programming similar to Java, Scala, ActionScript, and C#) are generator expressions. These are essentially syn...
the data of an input field not on one line will all browsers accept it?
Hi im working on a system with inputfields. Normaly i put the input field on one line but now i have made it like this below <input type='text' name='alg_persoonsgegevens_achternaam' id='alg_persoonsgegevens_achternaam' class='text dontprintinput' value='xxxxxxx' maxlength='50' size='20' /> I was wonderdering if ALL browser...
How can I print the syntax tree of all functions in a Perl program?
Hi, perl -MO=Concise,-exec myprog.pl should do it but it only prints the syntax of the lines that are outside any procedures, and the main package itself. It does not print the syntax tree of packages and functions used in myprog and imported. Could someone tell me how to tell "B::Concise" to print all functions in myprog.pl. ...
PHP: use default value when calling a function.
in PHP you can call a function. by not calling all parameters by using these statement. function test($t1 ='test1',$t2 ='test2',$t3 ='test3') { echo "$t1, $t2, $t3"; } and you can just use the function like this test(); lets just say I want the last one to be different but not the others. the only way i know is by doing this with n...
Error 10500, makes no sense.
I am working on a 4 x 4 bit multiplier and am getting this error message, "Error (10500): VHDL syntax error at lab_6.vhd(33) near text "after"; expecting ")", or ","" twenty times. The problem is I have a ")" or a "," after the after statement. Here is the code: library ieee; use ieee.std_logic_1164.all; entity lab_6 is port(x, y...
Tuple parameter declaration and assignment oddity
I can assign a tuple as follows: var (min, max) = (1, 2) But I cannot then re-assign as follows (min, max) = (1, 3) //compiler error: ';' expected but '=' found Instead I seem to have to do: min = 1 max = 3 Why does the latter work whereas the former does not? ...
how to write an If statement, to compare core data attribute value?
i'm an objective-c newcomer. im trying to compare a core data entity attribute value and having trouble with the syntax. i just want to know the best way way to write the if statement to compare values. in this example, the someAttribute attribute is a boolean, and its default is NO. NSString *myValue = [NSString stringWithFormat:@"%...
PHP what is wrong with the syntax of this code?
Hi, I'm building some simple validation rules in php and my IDE (phped) is complaining about the syntax. Can anyone tell me what is wrong with the following? function notBlank($str) { (strlen($str) == 0) ? return false : return true; } phped complains of 'unexpected return' Any advice appreciated. Thanks. ...
Is there a programming language that allows variable declaration at call site?
Update 2: examples removed, because they were misleading. The ones below are more relevant. My question: Is there a programming language with such a construct? Update: Now when I think about it, Prolog has something similar. I even allows defining operations at definition line. (forget about backtracking and relations - think about ...
Use of [square brackets] around JavaScript variables
We have received some JavaScript from an agency that looks wrong, but works. For some reason they are adding [square brackets] around variables, thus: var some_variable = 'to=' + [other_variable]; This works, but the square brackets seem completely superfluous. Is there a purpose to this syntax or is it technically incorrect, but ig...
Request for comments: What should the syntax be to include code snippets in Markdown? (from external files)
I've been using Markdown recently. One of my biggest problems with Markdown is that Markdown has no syntax for including files within a document (vs., say, the listings package for LaTeX). I'd like to extend Markdown to support including whole and partial files as code snippets. For instance, it could look like this: ![:include src/fo...
What is this syntax in Java? I do not recognize it.
This is a syntax question. I was looking at some open source files and I met some syntax that I cannot recognize and I was hoping you could clear it up for me. (This is taken from the Main.java in the Rhino debugger here) public static String[] processOptions(String args[]) { String usageError; goodUsage: for (int...
Explain JavaScript's encapsulated anonymous function syntax
Summary Can you explain the reasoning behind the syntax for encapsulated anonymous functions in JavaScript? Why does this work: (function(){})(); but this doesn't: function(){}();? What I know In JavaScript, one creates a named function like this: function twoPlusTwo(){ alert(2 + 2); } twoPlusTwo(); You can also create an ano...
Create class in PHP
Hello all, i'm a newbie to PHP and i don't like to write my code in notepad-like editors. Is there an editor like VS for PHP? Also, if you could give me a reference to a good introductory PHP eBook (one that covers simple concepts like declaring and using classes in PHP) that would be great. Thanks in advance! ...
$_SESSION up all $_POST variables?
Is there any way to do some kind of while() for each post variable and session it up... like in mysql while($row=mysql_fetch_array($result)){ echo($row['name']; } But to get this result with the $_POST while($_POST){ $_SESSION['BLA'] = $_POST['BLA']; } Thanks in advanced :) ...
What is the syntax to pass an array of Sprites into the Tweener Class in Actionscript 3?
This works: Tweener.addTween( [ _fee, _fye, _fum ] , { alpna:1, time:10 }); But this does not: var _myArray:Array = new Array( [ _fee, _fye, _fum ] ); Tweener.addTween( _myArray , { alpna:1, time:10 }); How can I pass the an array straight into the tweener? ...
Counting blanks when merging assoctiative arrays
I'm trying to merge these 2 arrays $arr1 = array('a' => "1", 'b' => "2", 'c' => "3"); $arr2 = array('a' => "9", 'b' => "8", 'd' => "7"); into an array that looks like this $arr1 = array( 'a' => array("1", "9"), 'b' => array("2", "8"), 'c' => array("3", ""), 'd' => array("", "7") ); The tricky part is the blanks. I...
switch statement doesn't work
how come this java switch statement keeps telling me my statements are not statements public void setConstant(float inNumGrade) { this.yourNumberGrade = inNumGrade; switch (this.yourLetterGrade) { case 'A': this.yourNumberGrade >= 0.90; break; case 'B': this.yourNumberGra...